Self-closing valve



Aug 15, 1944. 1 E. HARPER SELF CLOSING VALVE Filed April e, 1942INVENTOR L Y/vous E. HAAPcR BY a ArroRNEY l SOFT RUBBER RUBBER l/s il.

5 .3 M M s Patented Aug. 15, 1944 SELF-CLOSING VAINE Lyndus E. Harper,Kansas City, Mo., assigner to Omega Machine Company, Kansas City, M0., acorporation of Missouri Application April 6, 1942, Serial No. 437,873

12 Claims. a 277-70) My invention relates to valves, and moreparticularly to self closing valves of the type commonly known as checkvalves.

It is a purpose of my invention to provide a valve of the abovementioned character that is particularly adapted for use in connectionwith the pumping of liquids of a corrosive character, which would havean undesirable eiiect on valves made of metal, or with metallic parts.This application is a continuation in part of my application Serial No.354,164, liled August 26, 1940, now Patent No. 2,346,964, granted April18H, 1944', on Positive displacement pump, which discloses a pumpparticularly designed for use with such corrosive liquids. v

It is one of the purposes of my invention to provide a new and improvedvalve mounting for a valve member on a pump body, or pump head, which isof such a character that the clamping means used for clamping the valvebody to the pump body or head will positively seat the valve body inliquid tight relation to the pump body, or pump head, even though theclamping means should not be absolutely aligned properly with the seatfor the valve body in the pump, or pump head, said seat being of a selfaligning character so as to take care of any slight variations that mayexist in the manufacture of the parts. This is of particular importancein connection with a pump head for a pump handling liquids of avcorrosive character, because it is undesirable to use a metal pump headin such a pump and the means for securing the valve body to the pumpmust be of such a character that it will not put pump head, which is,preferably, made of a material that does not have the tensile strengthof` a` metal such as ordinarily used for such Dur- VDoses.

It is the particular purpose of my invention to provide a valve made upof a pair of body members, or casing members, that are secured togetherdetachably by clamping means and which Vundue Vstresses on the materialof the pump, or

have a valve member cooperating with at least the two portions of thevalve body, being clamped therebetween, and an inner portion which car-'ries the compressible valve member that cooperates with the valve seat,there being resilient band members extending between the outer annularmember and said inner portion, which are tensioned when the valve is inposition in the valve body to yieldingly hold said valve member inengagement with the valve seat. Preferably, Athe compressible valvemember, or closure member, is separable from the mounting means,although if desired the closure, or valve member, and the mounting meanscan be made integral.

Other objects and advantages of my invention will appear as thedescription of the drawing proceeds, I desire to have it understood,however, that I do not intend to limit myself to the particular detailsshown or described, except as defined in the claims.

In the drawing:

Fig. 1 is a fragmentary sectional view showing my invention applied toan outlet or discharge valve.

,f Fig. 2 is a similar view showing my invention applied to an inletvalve.

Fig. 3 is a view similar to Fig. 1, of a modiiication.

Fig. 4 is a view similar to Fig. 2, of a modification.

Fig. 5 is a perspective view of one form of valve member used incarrying out my invention.

Fig. 6 is a fragmentary elevational view showing the valve clampingmeans used in conjunction with the inlet valve shown in Fig. 2, the viewbeing taken substantially at right angles to Fig. 2.

Fig. 7 is a fragmentary sectional view showing the preferred form of myinvention applied to an outlet valve.

Fig. 8 is a similar view of the preferred form of my invention appliedto an inlet valve.

Fig. 9 is a perspective View of the closure member or valve plug memberused in the preferred `form of my invention.

Fig. 10 is a perspective view of the mounting rmember for the valveclosure member or plug ber omitted to more clearly show the structure`of the body members.

Referring in detail to thedrawing, my invention is shown as beingapplied to a pump having a body portion 2B, to which a head 2| issecured by means of a clamping ring 22 and screwthreaded headed members23. The head 2l is provided with an inlet passage 24 and an outlet ordischarge passage 25, and the clamping plate or ring 22 is provided withan opening 26 axially aligned with the inlet passage 24. The pump body26 is, preferably, made of metal and is separated from the corrosiveliquid by means of a diaphragm 21, of which only a fragment is shown inthe drawings, while the head 2| is, preferably, made of glass, hardrubber, or other plastic material, that will not be affected by thecorrosive liquid coming in contact therewith. -As the pump.

head and body portion .are only illustrated. to show the application ofmy improved valve means thereto, the same reference numerals are appliedthereto in all the forms of the invention illustrated.

assasz Mto variations in the manufacture of the parts,

The head member 2| is provided with suitable inlet and outlet valvebodies can be clamped to v said head and screw-threaded connectionsentirely avo-ided and yet a tight joint obtained without placing anyundue stresses on the material of the head. The seat for the outletvalve body is designated by 'the numeral 28 in the drawing, and that forthe inlet valve body by the numeral 29. Itwill be noted that both thevalve body seat or socket 28 and the valve body seat or socket 29 are ofa concave character, and that the valve outlet passage 25 issubstantially co-axially arranged relative to the valve body seat, orsocket, 28, and the inlet passage 24 is substantially oo-axiallyarranged relative to the valve body seat or socket 29. The inlet orintake valve body shown in Fig. 2 comprises or is made up of a pair ofseparable portions 30 and 3|. The adjacent faces of saidV valve portions39 and 3| are provided with offsets therein soas to provide an innerannular ledge or seat 32 on the body portion 3| opposite a similar ledgeor seat 33-on the portion 35, between which is mounted an annular rimportion 34 of Aavalve member, said valve member being-made, preferably,of a oompressible material not aiected by corrosive liquids, such asrubber, or rubber strengthened by fabric, or synthetic rubber or arubber substitute having the characteristics of compressibility andresiliency that is required of said valve member. also provided with anannular shoulder 35 that engages a corresponding annular shoulder 36 onthe valve body member 3U. The valve body member 38- is provided with aconvex end face 31 corresponding in curvature to the concave seat 29.The valve body portions 30 and 3| may be made of molded plasticmaterial, such as hard rubber, or other material that will not beaffected by co-rrosive materials, such as glass, or other transparentmaterial.

A metallic cap member 38 is, preferably, provided, which engages theouter end of the valve body portion 3| face to face, being provided withan annular flange 39 embracing the outer end of said body portion 3|,and a clamping bar 49 is, preferably, provided, which has a roundedprojection or rib 4| thereon, which seats in a rounded opening 42 in thecap member 38. The clamping bar 40, as will be obvious from Fig. 6, hasa pair of bolts 43 extending therethrough that are screw-threadedlyengaged with the metallic clamping plate 22. Preferably, a gasket 44 ofcompressible material, is provided between the concave seat 29 and theconvex end 31 of the valve body member 3U.

. It will' be obvious that the valve body can be clamped in positionwith the rim portion 34 of the Vvalve member above referred to held inpo- The body member 3| isA 'the valve facing the passage 24 relativeV tothat sition between the members 30 and 3|, due to 'f5 will becompensated for by the rocking connection between the bar 46 and the capmember 38 and by the concavely and convexly curved seating faces' of thesocket for the valve body, and the pump body, respectively. Due to thefact that the annular outer portion 34 of the valve member is clamped inposition between the two valve body portions 39 and 3|, the position ofsaid valve is determined and the joint is sealed between the two partsof the valve body because of the gasket-like character of the annularportion 34 of said valve member.

The valve comprises a valve plug member, which is shown as being a ballmember 45 in the form of valve shown in Fig. 2, although the particularvalve plug member at present preferred is of a somewhat differentcharacter from that shown in Fig. 2 and will be described below. Theball member 45 is connected with the annular ring-like portion 34 bymeans of connecting resilient band members 46, which are thin resilientstrips of material of the same character as the portions 34 and 45. Anydesired number of the members 45 may be provided, although four areshowninthe drawing. The ball or plug member 45 is thus centered relativeto the annular liein'a common plane normally, andthe valve plug memberi45 projects in both directions from the opposite lfaces of the annularportion 34 and the connecting members 46.

The inlet valve is provided with a seat for said vvalve plug or ballvalve member 45 at 41, which controls'communication between the passage48 in the valve body portion 39 and the passage 24, a passage 49 beingprovided in the valve body portion 36, which aligns with the passage 24and which `serves as a valve chamber. Any suitable conduit means, suchas thetubular member 50, communicates with the passage 48. It will benoted that vthe valve seat 41 and the shoulder 32 on the valve bodyportionfS are substantially in transverse alignment and that when thevalve plug 45 is in position in the valve with the rim portion 34 of.the valve member clamped against said shoulder 32 the connecting members46 will 'b tensioned, as will be obvious from Fig. 2, and

said members 46 being resilient4 will hold the ball member 45 againsttheseat '41 until there is a'sufoient drop in pressure on the side of onthe side facing the passage'48 that the tendency of the resilientmembers 46 to seattheplug or closure member45 will be overcome.

Ihemeans for mounting the outletor discharge valve in position comprisesan arm or bracket 5|, to which is loosely connected a barlike lever 52.An enlargement 53 is provided on the bracket 5|, which provides ashoulder on said bracket, and a lateral enlargement or head 54 is alsoprovided on said bracket I, which is spaced from the enlargement 53. Thebar-like member 52 is mounted between said shoulder and said head havingan opening 55 therein loosely receiving the arm or bracket 52, saidopening extending obliquely of the clamping lever or ban 52. Saidclamping lever 52 is provided with a threaded opening 56, through whichthe headed screw-threaded member 51 extends, which member engages withthe cap member 3B of the outlet valve, said cap member having a flange39 and being provided with a rounded recess or socket 42,` such aspreviously described in connection with the cap member on the inletvalve, said recess receiving the rounded end of the screwthreadedmemb-er 51.

The outlet valve is made up of a body member having the body portions6!) and 6l the valve body portion 66 having a similar relation to thevalve body portion 6! that the valve body member 33, previouslydescribed, has to the valve body member 3l. The valve body portion 6Ihas a ledge or seat 62 thereon opposite a similar ledge or seat 63 onthe portion 60, between which is mounted the annular rim portion 34 ofthe valve member previously described, said valve member being made thesame in both the inlet and outlet valves, and said shoulders 62 and 63corresponding to the shoulders 32 and 33 of the valve body portions 3land 36 previously described. The body member 6l is also provided with anannular shoulder 55 that engages the corresponding annular shoulder 66on the valve body member 6l), said shoulders corresponding to theshoulders 35 and 36 on the valve body members 3l and 36. The valve bodymember 60 is also provided with a convex end face 61 corresponding tothe convex end face 31 of the valve body'member 30, and corresponding incurvature to the concave seat 28 in the member 2|.

The metallic cap member 38 cooperates with the valve body member 6| in asimilar manner to that previously described, engaging the outer end wallthereof face to face and the flange 39 embracing the outer end of saidbody portion 6I The clamping means comprising the screwthreaded member51 mounted on the arm 52 and the cap member 38 clamp the convex end 61of the member 66 to the concave seat 28 with the gasket member 44,previously described, clamped between said convex and concave surfaces.

The valve body 60 has a restricted passage 63 therein, which leadsthrough a central opening in the gasket member 44 from the outlet ordischarge passage 'to a valve seat 69 provided on the member 60 at theend thereof remote from theconvex end wall 61 with which the valve plugmember 45 engages, being held in engagement yieldingly therewith in thesame manner previously described, due to the fact that said seat 69substantially aligns transversely with the shoulders providedfor'engaging the rim portion 34 of the valve means, the valve being, ofcourse, clamped in position between the two body portions 66 and 61 in asimilar manner to that previously described.

The valve body portion 6I has an enlarged bore 1D therein providing avalve chamber and a passage 1| extending from saidv chamber 10 to thedischarge pipe 12, which isk connected with the body portion in anysuitable manner, as by a threaded connection with a screw-threaded'opening in sa-id body portion 6l'. It will be obvious that if thepressure within the pump and thus within the discharge passage 25becomes higher than that in the chamber 10 or 1l, the valve plug orclosure member 45 will become unseated and liquid will be dischargedfrom the pump into the outlet pipe 12.

In Fig. 3 a slight modication is shown, in which instead of providingthe bracket 5l and bar 52, a bracket member 13 is provided having atransversely extending portion 14, with which the screw-threaded headedmember 51 engages in the screw-threaded opening 15, the same engaging acap member 38 such as has been previously described. An outlet valve isshown in Fig. 3, which is secured to a pump head 2|, such as thatpreviously described, by the clamping means comprising the bracket, thecap and the screw-threaded member above referred to. The valve bodymember 66 previously described, is utilized in themodication shown inFig. 3 and is constructed in the same manner as has been previouslydescribed. It will be noted that due to the provision of the pair ofoffset annular' shoulders, intertting or telescoping portions areprovided on the members 60 and 6| shown in Fig. l, holding the same inaxial alignment, and that said members 66 and 6I are rmly held in axialalignment. It will also be noted that a gasket member 44 is providedbetween the concave wall of the socket or valve body seat 28 and theconvex end wall 51 of the member 60 in Fig. 3 just as in the form of theinvention shown in Fig. l. However, instead of having the body member 6lintertted with the body member 60 as described in connection with Fig.1,

.A the body member 6U cooperates with an intermediate body member 16, ofwhich one is shown in Fig. 3, but it will become obvious upon furtherdescription of this form of the invention that any number of saidmembers 16 can be provided, dependent upon `the number of loaded 'checkvalves that may be desired in the outlet valve structure. Said member'i5 is provided with an annula shoulder 11 that cooperates with theannular shoulder 63 on the body member 66, and with an annular shoulder13 that cooperates with the annular shoulder 66 on said member 66 in thesame manner as the shoulders and 62 on the member 6I cooperate therewithin the form of the invention shown in Fig. l, a valve member being thusclamped in position at its rim portion between opposing shoulders orledges on said members 63 and 16. The valve plug member 45 of this valvemeans cooperates with the seat 69 in the same manner as previouslydescribed, and a valve chamber 1i) is provided within the member 16 toaccommodate the valve mechanism. Said member 16 is provided with atransverse wall portionl ilywhich is provided with a restricted passage8l therein, providing a valve seat B2 at the end thereof opposite thatopening into the chamber i9, and said Inemberr'l further has annularshoulders S3 and 84 thereon that cooperate with the annular shoulders 62and 65 of the body member 6l. The annular shoulders 62 and 83 cooperateto clamp the rim portion of the valve having the plug or closure member45 cooper` ating with the seat 32 in position between said valve bodymember 6l and the intermediate body member 1E in a similar manner tothat previously described, so as to yieldingly hold the valve plug'45 inengagement with said seat. p The member 6| is made in the same manner aspreviouslyY described, although being somewhat reduced in height inorder to accommodate the valve having a plurality of check valve memberstherein in the space between the transverse portion 14 of the bracketand the member 2|, and the outlet connection 12 extends from the chamber1| in the same manner as previously described.

In Fig. 4 a slight modification of the inlet valve is shown, the samebeing secured to the pump head in the same manner as shown in Fig. 2,the clamping bar 40 connected with the ring-like member 22 cooperatingwith the cap member 38 in the same .manner as has been described inconnection with Fig. 2. The valve body member 30, previously described,is provided in the form of the invention shown in Fig. 4 and isconstructed in thev same manner as has been previously described, thegasket member'44 being provided between the concave wall 29 of thesocketportion and the convex end wall 31 of the member 30, as previouslydescribed. However, instead of having the body member intertted with thebody member 3|, as in the form shown in Fig. 2, the vbody member 35cooperates with an intermediatebody member B5, which is somewhatsimilar' to the intermediate body member 16, but is of a reversedcharacter to that of the intermediate member 16. Said intermediatemember 86 has an annular shoulder 81 corresponding to the annularshoulder 11 on the member 15, and an annular shoulder 88 correspondingto the annular shoulder 18 on the member 16, but instead of a valvechamber in the end thereof facing the body member of the valve nearestthe pump head, has a restricted passage 89 therein providing a Valveseat 90 for the valve plug or closure member 45. A recess providing avalve chamber 9| is in the opposite end thereof, which is vthat providedwith the annular shoulders 93 and' 94 corresponding to the annularshoulders 83 and 84 provided on the member 16, which cooperate with theannular shoulders 32 and 35, respectively, on the member 3|, previouslydescribed. The rim portion 34 of one valve member is clamped between theshoulders 81 and 33 on the members 30 and 86 and the rim portion 34 ofthe other valve member is clamped between the shoulder 32 on the member3| and the shoulder 93 on the member 85, and the valve closure member orplug 45 of the valve member clamped between the portions 3| and 86engaging the valve seat 41, the relationship of the parts of the valvemeans and the relationship of the valve seats and shoulders being thesame as previously described, whereby the tension in the connectingmembers 46 is provided, holding the valve closure members 45 to theirseats yieldingly.

It will thus be seen that multiple check valves that can serve both asinlet and outlet valves can thus be provided and that the number ofvalve closure members utilized will be dependent upon the number ofmembers 16 or 86 nested together, for it will be obvious that theshoulders 11 and 18 on the member 16 correspond to the shoulders 65 and62 on the member 6|, and that the shoulders 83 and 84 on the member 16correspond to the shoulders 63 and 66 on the member 60, and thattherefore one end of the member 16 can always be nested with theopposite end of the next member 15 in a similar manner to which themembers 60 and 6|, or the members 60 and 16, or 16 and 6|, can be nestedto align with each other to clamp the rim portion of a valve membertherebetween. Itwill also be noted that the member 86 is similarlyformed so as to be capable of being intertted with another member CII 86on either end thereof, or with a member 30 or a member 3|, as the casemay be. Accordingly any number of these valve members can be utilized inmultiple as may be desired and all operate in the same manner.

I have found that from a production standpoint and operating standpoint,the form of valve member illustrated in Figs. 1 to 11, inclusive, ispreferred. The valve means in the inlet and outlet valves'is exactly thesame in construction and is similar to the valve means illustrated inthe other forms of the invention, having a rim. portion |34, whichconstitutes the outer annular portion of said valve means and havingalso an inner annular portion |35 connected with the outer annularportion |34 by means of the radially extending portions |46, thusproviding an inner and an outer annular portion connected together byresilient band portions, the portions |34, |35 and |46 being,preferably, integrally made of rubber or similar compressible resilientmaterial, of either a synthetic or natural character. A centralsubstantially circular opening |09 is provided in said valve means forreceiving the reduced neck portion |0| of a valve plug member having thedisk-like enlargement |02 constituting the valve seat engaging portionof said closure plug and having a substantially conical head portion |03thereon, the head portions |02 of a flat disk-like character, and |03 ofa conical character, being on opposite sides of the reduced connectingportion |I, which is of substantially a size to t in the opening |00,said plug member being thus capable of being interlocked with themounting member by forcing the tapered end of the conical head portion|03 through the opening |00 past the shoulder provided between the head|03 and the reduced portion |0|, whereby said plug member will snap intointerlocked position with the mounting means, being carried by the innerannular portion |35 with thek disk-like closure plug |02 in position toengage a valve seat of either an inlet or outlet valve, as the case maybe, when the rim portion |34 of the mounting member is clamped inposition between the shoulders of the valve body portions in a mannersimilar to that previously described.

A slightly modified form of valve body members is shown in Figs. 7, 8and 11, in which the inlet valve shown in Fig. 8 is provided with a bodyportion 30', similar to the body portion 30 and cooperating with theconcave seat 29 and the gasket member 44 in a similar manner to thatpreviously described, but instead of being shouldered as is the member30 on the end thereof facing the body member 3|, the member 30 merelyhas a flat end face |04 perpendicular to the axis thereof, whichcooperates with an annular shoulder |05 on the member 3|', said member3| having an annular rim or rib portion |06 for telescopic engagementwith the cylindrical wall of the passage 49 ofthe member 30 for holdingthe portions 3| and 30 in axial alignment. The member 67| of the outletvalve is merely provided with a fiat end face |01, instead of beingshouldered, which engages with an annular shoulder |08 on the bodymember 60', and has an annular rib portion |09 thereon that telescopeswithin the substantially cylindrical valve chamber ||0 provided in thebody member 6| of this form of outlet valve. Theannular rib portion |09and the annular rib portion |06 are similarly arranged and related tothe corresponding cooperating valve -bodyportiom and both serve the samepurpose.v

In Fig. l1 the valve means has been omitted in order to show moreclearly the cooperative relation between the annular shoulders andannular rib portions, whereby clamping faces are provided for the rimportion |34 of the valve mounting member and the telescoping joint isprovided between the two portions of the valve casing, that is, the bodymember B and the body member 6I or the body member 3S and the bodymember 3|', as the case may be. In either case the annular rib, such asthe rib portion |09 illustrated in Fig. 11, is provided with a numberlof slots or notches therein, corresponding to the number of connectingmembers |46 provided between the rim portion |34 and the annular portion|35 of the valve mounting means, 'so that said rib will not interfere inany way with the operation of the valve means.

Instead of the valve plug member ||l2 merely seating against' a cornerof the restricted passage of the member that has the valve seat, as inthe previously described forms of the invention, both the inlet valvemember and the outlet valve member are provided with raised annularseats, with which the flat faces of the valve plugs engage. Theprojecting annular valve seat of the inlet valve member is designated inFig. 8 by the numeral ||2 and surrounds thel opening of the 'passage 48in the member 3|', while in the outlet valve the member Bil' is providedwith such a projecting annular seat, the same being indicated by thenumeral ||3 in Figs. I and 11, and in both cases lying within theannular recess formed within the annular rib portion |05 or |09, as thecase may be, the bottom of this vrecess being slightly offset from theshoulder |8on the member 5|', as shown at ||4 in Fig. 11, and from theshoulder It as shown at H5 in Fig. 8, to place the sealing edge of theannular seat` ||3 substantially in transverse alignment with theshoulder |08 and the sealing edge of the annular rib portion I2substantially in transversefalignment with the annular shoulder |65;said `ar rangement of shoulders and the enlarged character of the valveplug |92 and its projection from one face of the valve mounting member,as will b-e obvious from Figs. "land 8, causing tensioning of theresilient band portions |46 to'hold the flat sealing face of theenlargement |62 `of the valve plug or closure member in sealingengagement with the valve seat with which it cooperates. The other partsshown in Figs. '7 and 8 are similar to those previously described inconjunction with the other forms of the invention and cooperate with thevalve members in the same manner and are designated by the samereference numerals in Figs. 7 and 8 as in the other figures of thedrawings. Instead of providing a single passage leading to the valveseat through the body portion 69', it has been found desirable toprovide a plurality of passages H6 therein when the valve plug member iB2 is used.

Preferably, the valve body members in all forms of the invention, aswell as the intermediate meinbers, are made of some form of transparentmaterial, such as glass, or transparent plastic material, not affectedby corrosive liquids, or the same may be made of hard rubber, while thevalve mounting members and the valve plug members are, preferably, madeof rubber having the elasticity and the compressibility common in rubbergaskets and rubber closure or sealing members provided in valves. In theform of the invention shown in Figs. 'l to 11, the valve meanscomprising the plug member and the mounting means therefor can be madeof two different characters of resilient compressible material, ifdesired, so that the band or connecting portions |45 will have greaterelasticity than the material of which the plug member is made.

While my invention is particularly adapted for use in connection withthe pumping of corrosive liquids and the parts of the valves are,preferably, made of materials that are not attacked by corrosivematerials, such as rubber, glass and materials having similarcharacteristics `to rubber and glass, yet for certain uses the valvebody portions could be made of metal and even the valve mounting meanscould be made of a highly resilient metal, but of course, under thosecircumstances, if any high pressures are encountered it would benecessary to use additional gasket means `between the valve bodyportions at the jointsbetween the same and some of the advantages ofYmaking the valve mounting means serve both as a valve mounting means andas a gasket means would not exist.

What I claim is: i

1. The combination with a member having a concave valve body seattherein and a passage leading to said seat, of a Valve body comprising abody portion having va convex end wall cooperating with said seat, abody portion detachable therefrom, a Valve member having a compressibleportion mounted between said body portions, and a single means forsimultaneously clamping said body portions to each other and said valvebody Ytosaid seat.

2,. The combination with a member havinga concave valve body seattherein and aj passage leading to said seat, of avalve body comprising abody portion having a convex end wall cooperating with said seat, a bodyportion d etachable therefrom, a valve member having a portion mountedbetween said body portions, and a single means for simultaneouslyclamping said body portions to each other and said valve body to saidseat, said means clamping said valve member in position. Y

l"3.The combination with a member having' a concavevalve body seattherein and a passage leading to said seat, of a valve body-comprising a`body portion having a convex end wallcooper- 'ating with said seat, abody portion detachable therefrom, a ball valve vmember having a portionsurrounding said ball andv flexibly connected therewith mounted betweensaid body portions, and means for clamping said body portions to eachother and said valve body to said seatsaid means clamping said valvemember in position.

4. The combination with a member having a seat therein and a passageleading to said seat, of a valve body comprising a body portion havingan end wall cooperating with said seat, a body portion detachabletherefrom, a valve member having a oompressible portion mounted betweensaid body portions, and means having rocking engagement with said valvebody for clamping said body portions to each other and said valve bodyto said seat, said body portions having intertting means for aligningthe same with rality of valve member each comprising a valve, an annularportion clamped between a, pair of adjacent valve body portions andresilient means connecting said Valves with said clamped portions toyieldingly hold said valves to said seats, said adjacent body portionshaving means cooperating with said annular portion to align said valvewith a valve seat.

6. A valve comprising a pair of body portions each having passagestherein, a Valve seat on the end face of one of said body portions, apair of cooperating shoulders on the adjacent ends of said bodyportions, a valve member comprising a compressible rim portion engagingsaid shoulders, a sealing member engaging said valve seat and narrowresilient band members connected with said sealing member and said rimportion and extensible to tension the same and urge said sealing membertoward said seat, and means for clamping said body portions -together toclamp said rim portion between said shoulders with said sealing memberin cooperative relation to said seat. f

7. A valve comprising a pair of body portions each having passagestherein, a valve seat on the end face of one of said body portions, apair of cooperating shoulders on the adjacent ends of said bodyportions, a valve member comprising a compressible rim portion engagingsaid shoulders, a sealing member engaging said valve seat and narrowresilient band members connected with said sealing member and said rimportion, and means for clamping said body portions together to clampsaid rim portion between said shoulders with said sealing member incooperal tive relation to said seat, said shoulder on said body portionhaving said valve seat thereon b eing substantially in transverse`alignment with said valve seat and said rim portion and resilientmembers normally lying in a common plane, said sealing member normallyprojecting from the plane of said rim portion and resilient members toextend said resilient members to tension the same to yieldingly holdsaid sealingmember in engagement with said valve seat when said rimportion is clamped between said shoulders.

8. A valve comprising a pair of body portions each having passagestherein, a valve seat on the end face of one of said body portions, apair of cooperating shoulders on the adjacent ends of said bodyportions, a valve member comprising a compressible rim portion engagingsaid shoulders, a sealing member engaging said valve seat and resilientmembers connected with said sealing member and said rim portion, andmeans for clamping said body portions together to clamp said rim portionbetween said shoulders with said sealing member in cooperative relationto said seat, said shoulder on said body portion having said valve seatthereon being substantially in of interiitting axially aligned portions,clamping means rockably engaging one of said axially aligned portions toclamp another thereof in said socket, said last mentioned portion havinga concave end mounted in said socket to permit said --portion to rock insaid socket, a plurality of said valve body portions having valve seats,and

a plurality of valve members each comprising a compressible portionmounted between a pair of adjacent intertting valve body portions.

10. 'I'he combination with a member having a socket therein, of a valvemechanism comprising a valve body comprising a plurality of interttingaxially aligned portions, means engaging the extremity of one of saidaxially aligned portions to clamp the opposite extremity of anotherthereof in said socket, and valve means comprising a compressibleportion mounted between adjacent intertting body portions, said othervalve body portion and said socket having cooperating curved wallportions to provide a rocking connection between said valve body andsaid socket.

11. The combination with a member having a socket therein, of a valvemechanism comprising a valve body comprising a plurality of interttingaxially aligned portions, a clamping mem- -ber rockably engaging one ofsaid axially aligned portions to clamp another thereof in said socket,

4said latter body portion and said socket being formed to permit saidvalve body to rock in said socket, and Valve means comprising acompressible portion mounted between adjacent intertting body portions.

12'. The combination with a member having a socket therein, of a valvemechanism comprising a valve body comprising a plurality of interiittingaxially aligned portions, means engaging one of said axially alignedportions to clamp another thereof in said socket, said one portionhaving a universally tiltable connection with said clamping means andsaid other portion having a universally tiltable connection with saidsocket, and valve means comprising a portion mounted between adjacentintertting body portions.

LYNDUS E. HARPER

